Engraving-machine



T. A. NI SSINEN ENGRAVING MACHINE.

APPLICATION FILED MAR. 21, 1919.

Patented Dec. 14, 1920.

5 SHEETS-SHEET 1.

INVENTOR ATTORNEY-o T. A. NISSINEN.

ENGRAVING MACHINE.

APPLICATION FILED MAR. 21. 1919.

1,362,261 Patented Dec. 14, 1920.

5 SHEETS-SHEET 2- T. A. NISSINEN.

ENGRAVING MACHINE.

APPLICATION FILED MAR.2I,1919.

Patented Dec. 14, 1920.

5 SHEETS-SHEET 3- I VE TQ'R v BY K mpym ATTORNEYS T. A. NISSINEN.

ENGRAVING MACHINE.

APPLICATION FILED MAR. 2|, 1919.

1,362,261. Patented Dec.14,1920.

5 SHEETS-SHEET 4.

INVENTOR A TORNEYJ A. NISSINEN.

ENGRAVING MACHINE.

APPLICATION FILED MAR. 21, 1919.

1,362,:z61. Patented Dec.14,1920.

5 SHEETS-SHEET 5.

FATENT OFFICE.

'IOIMI A. NISSINEN, OF YONKERS, NEW YORK.

ENGBAVING-MACHINE.

Specification of Letters Patent.

Patented. Dec. 14., 1920.

Application filed. March 21, 1919. Serial No. 284,046.

5 New York, have invented certain new and useful Improvements inEngraving-Machines, of which the following is a full, clear, and exactdescription.

This invention relates to engraving machines and more particularly tothose machines which are used for engraving graduations on gun sights,scales and the like.

(has object of the invention is to provide ting or adjusting the workfor different engraving positions so arranged with respect to the workthat any inaccuracies in the setting or adjustments will appear only indiminished amount in the work itself.

Another object is to provide simple and efiicient means for imparting tothe tool, in addition to its engraving movement, a movement into and outof engagement with the work at the proper time', and means forauton'iatically and variably limiting the extent of the engravingmovement according to a predetermined plan.

Qther objects of the invention will hereinafter appear, and the novelfeatures thereof will be set forth in the claims.

In the drawings:

Figure 1 is a side elevation of a machine made according to the presentinvention;

Fig. 2 is a plan of the same;

Fig. 3 is a fragmentary section on the line 3-3 of Fig. 1;

Fig. 4 is a section on the line 1-d of Fig.

Fig. 5 is a fragmentary enlarged plan showing the position definingindications and the long arm of the work carrier in registrationtherewith.

F ig. 6 is a section on the line 6--6 of Fig. 5.

Fig. 7 is a fragmentary enlarged plan showing the work engaged by theengraving tool.

Figs. 8 and 9 are fragmentary views, partly in section, showingsuccessive positions of the tool actuating arm and appurtenant parts.

Fig. 10 is a section on the line 10-10 of Fig. 9.

Fig. 11 is a section on the line 11- -11 of Fig. 9.

in a machine of this kind, means for set Fig. 12 is a section on theline 1 12 of Fig. 9.

In carrying out the invention, 1 provide an eccentrically pivotedcarrier, on the short arm of which the work is supported, and meansacting on the long arm of the carrier for moving it and the work carriedthereby to different engraving positions, and for holding the same insuch positions during the engraving operation.

In the embodiment illustrated there is provided a table 11 properlysupported by the standards 12 and 13. At the front of the table 11 thereis provided the laterally extending platform 14, having two pairs ofarcuate rows of orifices 15 and 16, for cooperating with the pins 17 and18 mounted in the head 19 at the end of the long arm 20 of the workcarrier a, which is pivotally mounted in the bearing 21 with its shortarm 22 provided with a seat 23 for receiving the work 24: to be operatedupon, whereby the successive operating positions of the work carrier areaccurately determined.

The engraving tool 25 is mounted to reciprocate relative to the standard26 which is fixed to the rear portion of the table 11 rearwardly of thepath of movement of the work receiving end of the work carrier at.

For facilitating the oscillation of the long arm 20, the rollers 27 areprovided, the axes of which coincide with the lines radiating from theaxial center of said arm 20. At the far ends of the platform 14: areformed steps 28 which cooperate with the rollers 27 to limit themovement of the arm 20.

The pins 17 and 18 are secured by suitable bearing'blocks 28-28 to theupwardly extending arms 29, 29 pivotally connectedto the lever 30, whichis adjustably mounted on the shaft 31. The shaft 31 is carried at itsfront end in the bearing 82 formed on the arm 20, additionally supportedby the intermediate bearings 38, 3 1, and supported at its rear end inthe bearing 35, to the rear of which the operating handle 36 is fixedlylocated on said shaft 31. To alternately register with the orifices 15there are provided the pin guiding thimbles or thimble guides 37, 38,and to alternately register with the orifices 16, there are providedlike thimble guides 89, 40 formed on the arm 20. The manipulation of thepins is substantially as follows: Assume that the lever 30, as shown, isset so that the pins 17 and 18 reciprocate in the guides 39, 10, thenupon the guide 39 or 40 registering with an orifice 16, the propermanipulation by the handle 36 will swing either the pin 17 or 18 into anorifice 16. Since the spaces between the orifices 16 vary from veryshort spaces at the top of Fig. 2 to comparatively long spaces at thebottom of said figure, it has been found desirable to actuate the arm'20from one to another of such orifices 16 by means of the block and tacklearrangement 11, in whicha cable42 is fixed at one end to the arm 20, iswound around the sheaves l3 and 1 1 connected to the platform 14: andarm 20, respectively, and then to the sheave 45 formed on the side ofthe wheel 46. When the lever is mounted on the shaft 31 so that its pins17 and 18 register with the guides 37 and 38, then the orifices 15 willbe engaged. Since the orifices 15 are disposed relatively close to oneanother and the spaces between them uniform, it has been found desirableto so arrange the oscillation of the shaft 31 that successive orificescan be engaged alternately by the pins 17 and 18 by merely swinging thelever 36 from side to side as the need arises. The pins 17 and 18 areprovided with the cam faces 103 along their ends, which cotiperate withthe orifices to advance the work carrier a. When the pins cooperate withthe orifices 15then the cam faces 103 will be solely depended upon foradvancing the carrier. When the pins coi perate with the orifices 16,then these'cam facesserve to facilitatethe ready engagement of theorifices by said p1ns;-

The bearing 21 on which the carrier a is mounted is adapted tofacilitate accurate alinement of such carrier relative to itsappurtenant parts, and since it forms no part g ofthe present inventionthe following brief boss from said shank 17.

description will suffice. This bearing comprises an enlarged cylindricalboss, having a shank 47 extending down from the center 7 thereof, aroundwhich shank a? in said boss 16 there is formed an annular groove 48 tospace the annular bearing face 19 of the On the table .11 there issecured a bearing 50 which incloses a split bushing 51 drawn-tightlyagainst the shank 47. To the lower face of the table 11 there issecured-a bearing bracket 52 which incloses a split bushing 53 similarto the bushing 51 which is also tightly drawn against the shank 1-7. Thelower end of the shank a7 is threaded and has lock nuts 54 securedthereto to lock the shank in place. The work occupying end of the shortarm 22 is mounted to travel on the smooth faced hearing 55 and has anarcuate rear face in which the sharp ti-shaped seat 23 is formed toreceive the work 2 1 which conforms thereto,

To anchor the workin the seat 23 the locking 7 plates 56 areprov1ded,which engage the rear upper edge of the work 24: and upper faceof the work supporting arm 88, and aresecured in place by the screws 57.

The work 24 illustrating a range scale,'and for engraving which themachine is especially adapted, embraces an arcuate metal strip having amedial groove 58 extending throughout the same, the upper zone 59 0fwhich, see Fig. 7, is cut with graduations, the distances between whichvary from the shortest at the lower end of Fig. 7 to the widest at theupper end of such figure, and the lower zone 60 of which is cut withgraduations that are uniformly spaced from one another. The varyinggraduations are designated meter graduations and the uniformgradu'ations' are designated mill graduations by the range finder andare generally marked \ftr. and Md, respectively. Since the inventionconfines itself to means for engraving the graduations, the use of thesescales will not be gone into.

The engraving tool and its appurtenant parts which form an importantpart of the present invention will now be described. Rearwardly of theshort arm 22 and on the table 11 there is formed the standard 26, fromone side of which extends the arm 60', having formed in its end face thedove-tail groove 61 to receive the dovetail 62 of the block 63, suchblock 63 being secured to the arm 60 in said dove-tail slot by the setscrew ea. In the block 63 there is journaled the stub shaft 65 on whichis rotatably mounted the gear 66, to which is fixed the operating lever67. Also loosely mounted on said stub shaft 65 is a stop wheel 68, onthe periphery of which, and radially extending theref om, there areprovided a plurality of stop pins 69 adjustably mounted to extenddifferent distances from such periphery. Adjacent to said stop wheel 68and fixed thereto is provided the notched disk 70 wvhich is adapted tocoiiperate with the pawl 71 secured to the lever 67. r V

Adjacent to the stub shaft 65 there is formed an elongated slideway 72in the block 63, in which is slidably mounted the slide block 73, on theupper end of which is mounted the tool supporting bracket 74, and alongthe sides of which are mounted the rack 75 and stop cotiperatingbracket-76.

.The rack 7 5meshes with the gear 66 and thus when the handle 67 isrocked, the gear 66 will actuate the rack 75 to in turn actuate thebracket 7 1. The stop coiiperating bracket 76 has an arm 77 providedwith a stop face 78 for alinin'g with and engaging one of the stop pins69 of the stop wheel,

1n the upper portion of the bracket7e there is formed a slideway 7 9 toreceive the V slide piece 80 in the groove 81 on which the engravingtool '25 is adjustahly mounted; The" rear end of the slide piece 80 ispivotally connected to the link 83 which is pivotally connected o theperforated link 84 which is pivoted to the rear end of the bracket 74.In the link 84 are provided two adjacent orifices or perforations 85 and86. The bracket 74, which extends both above and below the link St, isprovided with one set of alined openings 87 and 88 to register at onetime with the orifice 85, and another set of alined openings 89 and 90,to register at another time with the orifice 86. On the sides of thebracket 74; adjacent to the link 8+1; there are formed the ears 91 and92, having parallel openings therein to receive the parallel rods 93 and9 1 respectively, of the frame 95. The rods 93 and 94: are connected attheir upper ends to the cross piece 90 disposed above the bracket 7% andat their lower ends to the cross piece 97 below the bracket 74. Securedto and extending downwardlyfrom the cross piece 96 there is provided thepin 98 which is adapted to register with the orifices 87, 8 5 and 88 andhas a cammed end 99, the point of which is dis posed along the face ofsuch pin which lies adjacent the orifices 89 and 90. Secured to andextending upwardly from the cross piece 97 there is provided a pin 100which is adapted to register with the orifices 89, 86 and 90 and has acammed end 101, the point of which is disposed along the face of suchpin which lies adjacent to the orifices 87 and 88. The cross piece 97 inaddition is normally connected to the lever 67 by the link 102.

The operation of the engraving tool is substantially as follows:Assuming that the upper scale 59 is to be cut, the stops 69 would beadjusted according to the depth of the several cuts to be madethereupon, the stop cooperating bracket 77 adjusted, and upon the upwardmovement of the lever 67,-the links 83 and 84: being so timed that whenthe tool passes beyond the lower zone 69, the pin 98 will be moving outof the orifice 85 and the pin 100 enteringthe orifire S6,the inclinedface of the point 101 will serve to cam the link 84 over, and therebythrust the link 83 forward to in turn move the tool 25 into engagementwith the zone 59. Upon the downward movement of the lever 67, the tool25 will be withdrawn out of engraving engagement as soon as it reachesthe groove 58, at which time .the pin 100 will again release the link 84and the pin 98 returned into engagement with such link 8&. p

When it is desired to engravethe lower zone 60, the frame 95 will bedisconnected from the lever 67 and the stop pin 69 and stop bracket 77solely depended upon to limit the engraving action to the lower zone, tothe exclusion of the upper zone.

It is obvious that various changes and modifications may be made to thedetails of construction without departing from the general spirit of theinvention.

claim:

1. vThe combination with a frame, of a work carrier pivotally mountedthereon, said carrier having a short arm on the end of which the work tobe operated upon is mounted and a long arm, and means associated withthe said long arm for determining the relative positions of the carrier.

2. In an engraving machine, the combination of an eccentrically pivotedcarrier, hav ing provision for supporting work on a short arm thereof,means directly acting through the medium of the end of the long arm ofthe carrier for locating and holding the carrier in different engravingpositions, and engraving means in position to operate upon the work.-

The combination with a frame, of a work carrier pivotally mountedthereon, said carrier having a short arm on the end of which the work tobe operated upon is mounted and a long arm, means for mount ing a toolin position to operate on the work, means associated with said long armfor determining the relative positions of the car-- rier, and means foranchoring said long arm at desired positions.

4. The combination with a frame, of a work carrier pivotally mountedthereon, said carrier having a short arm on which the work to beoperated upon is mounted and a long arm, a platform having a row oforifices therein defining on an enlarged scale the successive positionsof the short arm, means for mounting a tool in position to operate onthe work carried by said carrier, and means on said long arm forcooperating with said orifices to anchor the work carrier inpropel-position relative to said tool.

5. The combination with a frame, of a work carrier having two armspivotally mounted thereon, one arm of which rec ives the work to beoperated upon, the other arm of which defines the position of said workcarrier, means for mounting a tool in position to operate on the workthus carried, and means for anchoring said carrier in tool operatingposition. v I

'6. The combination with a frame, ofa work carrier having two armspivotally mounted thereon, one arm of which receives the work to beoperated upon, pins mount ed on the other arm, means for mounting a toolin position to operate onthe work thus carried, and a platform having arowof orifices defining the positions of said work carrier and adaptedto receive said pins to anchor said work carrier in tool operatingposition.

7. The combination with a frame, of a work carrier having two armspivotally mounted thereon, one arm of which receives the work to beoperated upon, a lever mounted on the other arm, a shaft mounted on saidcarrier and connected to operate said lever, means for mounting a toolin position to operate on the work thus carried, a platform having rowsof orifices defining the positions of said work carrier, pins, one oneach end of said lever for alternately engaging said orifices, and meansfor rocking saidshaft, thereby to rock said lever to in turn operatesaid pins to engage successive orifices in alternate rows.

8. The combination with a frame, of a work carrier having two armspivotally mounted thereon, one arm of which receives the work to beoperated upon, a lever mounted on the other arm, a shaft mounted on saidwork carrier and connected to operate said lever, means for mounting atool in position to operate on the workthus carried,

a platform having rows of orifices defining the positions of said workcarrier, pins, one on each end of saidlever, means for rocking saidshaft, thereby'to rock said lever to in turn operate said pins to engagesuccessive orifices in alternate rows, and cam faces on said pins forcoiiperating with said orifices to advance said work carrier.

9, The combination wlth a frame, of a work carrier having two armspivotally.

mounted thereon, one arm of which receives the work to be operated upon,a lever mounted on the other arm, a shaft mounted on said work carrierand connected to operate said lever, means for mounting a tool in po- Vsition to operate on the work thus carried,

a platform having two concentric rows of orifices uniformly spaced fromone another defining the positions of said work carrier, pins, one oneach end of said lever for alternately engaging said orifices, means forrocking said shaft thereby to rock said leyer to in turn operate saidpins to engage successive orifices in alternate rows, and cam faces onsaid pins for cooperating withsaid orifices to advance said workcarrier.

' 10. The combination with a framepofa work carrier having two armspivotally mounted thereon, one'jarm of which receives the work to beoperated upon, a lever mounted on the other arm, a shaftmounted on saidwork carrier and connectedto operate said lever, means for mounting a'tool in positionto. operateon the work thus carried, a platform havingrows of orifices defining thepositions of said work carrier, pins, oneon each end of said lever,means for rocking said shaft, thereby to rocksaid lever to in turn operate said pins to engage successive orifices inalternate rows, cam'faces on said pins for cooperating with saidorifices to advance said work carrier, a hand wheel, and meansoperatively connecting .said hand Wheel to saidplatform'and carrier sothat the operation of said hand wheel will assist in advancing saidcarrier.

11. The combination with a frame, of a work carrier mounted thereon,said carrier having a short arm on which the work to be operated upon ismounted, and a long arm having pins mounted therein, a platform having aplurality of rows of orifices defining on an enlarged scale a pluralityof groups of successive positions of the short arm, means for mountingthetool in position to operate on the work carried by said carrier, andmeans on said long arm for setting said pins to register either with oneor another row of orifices to successively anchor the work carrier inproper position relative to said tool.

12. The combination with a frame, of a work carrier having two armspivotally mounted thereon, one arm of which receives guides to registerwith each group of orifices, said lever being adjustably mounted on saidshaft to register with one or another of said sets of guides, and meansfor rocking said shaft thereby to rock said lever to in turn operatesaid pins to engage successive orifices in the alternate rows. of agroup of orifices.

13. The 'combination with a frame. of a work carrier having two armspivotally mounted thereon, one arm of which receives the work to beoperated upon, a lever mounted on the other arm, a shaft mounted on saidwork carrier and connected to'saidlever, means for mounting a tool inposition to operate on the work thus carried, a platform having aplurality of rows of orifices defining on'an enlarged scale a pluralityof groups of successive positions of the work carrying arm, pins, oneoneach end ofsaid lever, a plurality of sets of cylindrical guidesonsaid other arm, one set of guides to register with each group oforifices, "said lever being adjustably mounted on said sets of guides,means for rocking said shaft thereby to rock said lever to in turnoperate said pins to enga e successive orifices in the alternate rows ofa group of or1fices,,and

cam faces on said pins for cooperating with said orifices to advancesaid work carrier.

14, The combination with a work carrier,

of a support, a slideblock slidably mounted" in said support, a'toolmounted on said slide block, a gear rotatably mounted on said support, arack secured to said slide block and in mesh with said gear, a handlefixed to said gear for operating the same thereby to advance said toolinto cooperative relation with said work carrier, a wheel having aplurality of stops radially mounted thereon, and a stop cooperatingbracket mounted on said slide block and cooperating with one of saidstops to limit the movement of said slide block.

15. The combination with a work carrier, of a support, a slide blockslidably mounted in said support, a tool mounted on said slide block, agear rotatably mounted on said support, a rack secured to said slideblock and in mesh with said gear, a handle fixed to said gear foroperating the same thereby to advance said tool into cooperativerelation with said work carrier, a wheel having a plurality of stopsradially mounted thereon, a stop cooperating bracket mounted on saidslide block and cooperating with one of said stops to limit the movementof said slide block, a notched wheel fixed on the side of said stopwheel, and a pawl connected to said handle and cooperatively associatedwith said notched wheel to advance said stop wheel step by step.

16. The combination with a carrier for work, of a support, a slide blockslidably mounted in said support, a tool slidably mounted in said slideblock, a lever, means for operatively connecting said lever to saidslide block whereby reciprocable motion may be imparted thereto, andmeans connecting said lever to said tool whereby the tool may beadvanced into and out of work-engaging position.

17. The combination with a work carrier, of a support, a slide blockslidably mounted in said support, a tool slidably mounted in said slideblock, links connecting said tool with said slide block, a frame, alever, means for operatively connecting said lever to said slide blockwhereby reciprocable motion may be imparted thereto, and pins mounted insaid frame and cooperating with said links to advance said tool into andout of workengaging position.

18. The combination with a work carrier, of a support, a sliding blockslidably mounted in said support, an engraving tool slid ably mounted insaid slide block, a lever, means for operatively connecting said leverto said slide block whereby said slide block may be reciprocated, meansactuated by the upward movement of said lever for placing andmaintaining said tool in work-engaging position and by the downwardmovement of said lever for placing and maintaining the tool out ofworkengaging position.

19. The combination with a work carrier, of a support, a slide blockslidably mounted in said support, engraving tool slidably mounted insaid slide block, a lever, links connecting said tool with said slideblock, one of said links having orifices therein, a frame connected tosaid lever, pins in said frame operating to alternately engage one oranother of said orifices, the engagement of one of said orificesoperating to advance said tool into work-engaging positionand theengagement of the other of said orifices operating to withdraw said toolout of workengaging position.

20. The combination with a work carrier, of a support, a slide blockslidably mounted in said support, engraving tool slidably mounted insaid slide block, a lever, links connecting said tool with said slideblock, one of said links having orifices therein, a frame connected tosaid lever, pins in said frame, cam faces on the ends of said pinsoperating to alternately engage one or another of said orifices, theengagement of one of said orifices operating to advance said tool intowork-engaging position and the engagement of the other of said orificesoperating to withdraw said tool from workengaging position.

In witness whereof I subscribe my signature.

TOIMI A. NISSINEN.

